<template>
<div>
     <van-nav-bar
    title="css课程"
    left-arrow
    @click-left="onClickLeft"
    @click-right="onClickRight"
  />
  <div>
      
  </div>
</div>
 
</template>
<script>
import { Toast } from "vant";
export default {
  name: "css_course",
  methods: {
    onClickLeft() {
      Toast("返回");
    },
  },
};
</script>
<style scoped>

/deep/.van-icon{
   color: black;
}
</style>